The Open Racing Car Simulator Download

trb3 car1-trb3

Car 1 TRB3

A technical look at the in-simulator car: authored configuration, derived performance figures and default setup.

Front three-quarter view of Car 1 TRB3
Front three-quarter
Side view of Car 1 TRB3
Side
Rear three-quarter view of Car 1 TRB3
Rear three-quarter
Peak power
360 kW 483 hp at 8,000 rpm
Peak torque
435 N·m at 7,000 rpm
Mass incl. driver
1,300 kg excluding fuel
Power / mass
277 kW/t 372 hp/t
Fuel
75.0 L 75.0 L tank
Transmission
6 gears RWD
Top-gear limiter speed
285.3 km/h Theoretical gearing value, not a real top-speed claim

Engineering charts

Torque and power across engine speed Solid torque in newton metres on the left axis and dashed power in kilowatts on the right axis, plotted against revolutions per minute. 010921832643502,0504,1006,1508,200 090180270360Power, kW Engine speed, rpm Torque, N·m TorquePower
Engine output Torque (Nm) Power (kW)
Engine chart data
RPMTorque (N·m)Power (kW)
900154.014.5
1,000160.016.8
2,000190.039.8
3,000240.075.4
4,000300.0125.7
5,000350.0183.3
6,000405.0254.5
7,000435.0318.9
8,000430.0360.2
8,200418.0358.9
Optimal shift envelope across road speed A prominent sawtooth line follows the calculated optimal shifts. Light dashed rays show each forward gear and a smooth root curve fits the engine-speed landing points after shifts. 02,0504,1006,1508,200071143214285 Road speed, km/h Engine speed, rpm
Gearing Optimal shift path Fitted n = a·v1/2.99 Individual gears

Shift points compare wheel torque before and after each upshift. The smooth root curve is a fitted reference through the post-shift RPM points, not an authored TORCS value. Speeds are theoretical gearing values, not measured top speeds.

Gearing chart data
GearRatioLimiter speed (km/h)Shift speed (km/h)Shift RPM
12.66076.176.18,200 to 4,932
21.600126.6126.68,200 to 5,894
31.150176.1176.18,200 to 6,417
40.900225.0225.08,200 to 7,198
50.790256.4256.48,200 to 7,370
60.710285.3Top gearNot applicable
Front tire normalized force versus slip ratio Front axle tire model force plotted against pure slip ratio in normalized units. -1.00-0.500.000.501.00-0.75-0.380.000.380.75 Longitudinal slip ratio Normalized force
Front tire, slip ratio, normalized force
Front tire slip ratio chart data
Slip ratioNormalized forceDisplayed force (normalized)
-0.750-0.954-0.954
-0.700-0.959-0.959
-0.650-0.965-0.965
-0.600-0.970-0.970
-0.550-0.976-0.976
-0.500-0.982-0.982
-0.450-0.987-0.987
-0.400-0.992-0.992
-0.350-0.997-0.997
-0.300-1.000-1.000
-0.250-0.999-0.999
-0.200-0.993-0.993
-0.150-0.972-0.972
-0.100-0.911-0.911
-0.050-0.703-0.703
0.0000.0000.000
0.0500.7030.703
0.1000.9110.911
0.1500.9720.972
0.2000.9930.993
0.2500.9990.999
0.3001.0001.000
0.3500.9970.997
0.4000.9920.992
0.4500.9870.987
0.5000.9820.982
0.5500.9760.976
0.6000.9700.970
0.6500.9650.965
0.7000.9590.959
0.7500.9540.954
Front tire static-load force versus slip ratio Front axle tire model force plotted against pure slip ratio in N units. -4,882-2,44102,4414,882-0.75-0.380.000.380.75 Longitudinal slip ratio Force, N
Front tire, slip ratio, static corner-load force
Front tire slip ratio chart data
Slip ratioNormalized forceDisplayed force (N)
-0.750-0.954-4,659
-0.700-0.959-4,684
-0.650-0.965-4,710
-0.600-0.970-4,736
-0.550-0.976-4,764
-0.500-0.982-4,792
-0.450-0.987-4,819
-0.400-0.992-4,844
-0.350-0.997-4,866
-0.300-1.000-4,880
-0.250-0.999-4,878
-0.200-0.993-4,846
-0.150-0.972-4,744
-0.100-0.911-4,448
-0.050-0.703-3,432
0.0000.0000
0.0500.7033,432
0.1000.9114,448
0.1500.9724,744
0.2000.9934,846
0.2500.9994,878
0.3001.0004,880
0.3500.9974,866
0.4000.9924,844
0.4500.9874,819
0.5000.9824,792
0.5500.9764,764
0.6000.9704,736
0.6500.9654,710
0.7000.9594,684
0.7500.9544,659
Front tire normalized force versus slip angle Front axle tire model force plotted against pure slip angle in normalized units. -1.00-0.500.000.501.00-30-1501530 Slip angle, ° Normalized force
Front tire, slip angle, normalized force
Front tire slip angle chart data
Slip angle (°)Normalized forceDisplayed force (normalized)
-30.0-0.982-0.982
-27.5-0.986-0.986
-25.0-0.990-0.990
-22.5-0.994-0.994
-20.0-0.997-0.997
-17.5-1.000-1.000
-15.0-1.000-1.000
-12.5-0.996-0.996
-10.0-0.984-0.984
-7.5-0.956-0.956
-5.0-0.881-0.881
-2.5-0.650-0.650
0.00.0000.000
2.50.6500.650
5.00.8810.881
7.50.9560.956
10.00.9840.984
12.50.9960.996
15.01.0001.000
17.51.0001.000
20.00.9970.997
22.50.9940.994
25.00.9900.990
27.50.9860.986
30.00.9820.982
Front tire static-load force versus slip angle Front axle tire model force plotted against pure slip angle in N units. -4,882-2,44102,4414,882-30-1501530 Slip angle, ° Force, N
Front tire, slip angle, static corner-load force
Front tire slip angle chart data
Slip angle (°)Normalized forceDisplayed force (N)
-30.0-0.982-4,792
-27.5-0.986-4,813
-25.0-0.990-4,833
-22.5-0.994-4,852
-20.0-0.997-4,869
-17.5-1.000-4,880
-15.0-1.000-4,880
-12.5-0.996-4,862
-10.0-0.984-4,805
-7.5-0.956-4,665
-5.0-0.881-4,299
-2.5-0.650-3,171
0.00.0000
2.50.6503,171
5.00.8814,299
7.50.9564,665
10.00.9844,805
12.50.9964,862
15.01.0004,880
17.51.0004,880
20.00.9974,869
22.50.9944,852
25.00.9904,833
27.50.9864,813
30.00.9824,792
Rear tire normalized force versus slip ratio Rear axle tire model force plotted against pure slip ratio in normalized units. -1.00-0.500.000.501.00-0.75-0.380.000.380.75 Longitudinal slip ratio Normalized force
Rear tire, slip ratio, normalized force
Rear tire slip ratio chart data
Slip ratioNormalized forceDisplayed force (normalized)
-0.750-0.954-0.954
-0.700-0.959-0.959
-0.650-0.965-0.965
-0.600-0.970-0.970
-0.550-0.976-0.976
-0.500-0.982-0.982
-0.450-0.987-0.987
-0.400-0.992-0.992
-0.350-0.997-0.997
-0.300-1.000-1.000
-0.250-0.999-0.999
-0.200-0.993-0.993
-0.150-0.972-0.972
-0.100-0.911-0.911
-0.050-0.703-0.703
0.0000.0000.000
0.0500.7030.703
0.1000.9110.911
0.1500.9720.972
0.2000.9930.993
0.2500.9990.999
0.3001.0001.000
0.3500.9970.997
0.4000.9920.992
0.4500.9870.987
0.5000.9820.982
0.5500.9760.976
0.6000.9700.970
0.6500.9650.965
0.7000.9590.959
0.7500.9540.954
Rear tire static-load force versus slip ratio Rear axle tire model force plotted against pure slip ratio in N units. -4,506-2,25302,2534,506-0.75-0.380.000.380.75 Longitudinal slip ratio Force, N
Rear tire, slip ratio, static corner-load force
Rear tire slip ratio chart data
Slip ratioNormalized forceDisplayed force (N)
-0.750-0.954-4,301
-0.700-0.959-4,323
-0.650-0.965-4,347
-0.600-0.970-4,372
-0.550-0.976-4,397
-0.500-0.982-4,423
-0.450-0.987-4,448
-0.400-0.992-4,472
-0.350-0.997-4,492
-0.300-1.000-4,504
-0.250-0.999-4,503
-0.200-0.993-4,473
-0.150-0.972-4,379
-0.100-0.911-4,106
-0.050-0.703-3,168
0.0000.0000
0.0500.7033,168
0.1000.9114,106
0.1500.9724,379
0.2000.9934,473
0.2500.9994,503
0.3001.0004,504
0.3500.9974,492
0.4000.9924,472
0.4500.9874,448
0.5000.9824,423
0.5500.9764,397
0.6000.9704,372
0.6500.9654,347
0.7000.9594,323
0.7500.9544,301
Rear tire normalized force versus slip angle Rear axle tire model force plotted against pure slip angle in normalized units. -1.00-0.500.000.501.00-30-1501530 Slip angle, ° Normalized force
Rear tire, slip angle, normalized force
Rear tire slip angle chart data
Slip angle (°)Normalized forceDisplayed force (normalized)
-30.0-0.982-0.982
-27.5-0.986-0.986
-25.0-0.990-0.990
-22.5-0.994-0.994
-20.0-0.997-0.997
-17.5-1.000-1.000
-15.0-1.000-1.000
-12.5-0.996-0.996
-10.0-0.984-0.984
-7.5-0.956-0.956
-5.0-0.881-0.881
-2.5-0.650-0.650
0.00.0000.000
2.50.6500.650
5.00.8810.881
7.50.9560.956
10.00.9840.984
12.50.9960.996
15.01.0001.000
17.51.0001.000
20.00.9970.997
22.50.9940.994
25.00.9900.990
27.50.9860.986
30.00.9820.982
Rear tire static-load force versus slip angle Rear axle tire model force plotted against pure slip angle in N units. -4,506-2,25302,2534,506-30-1501530 Slip angle, ° Force, N
Rear tire, slip angle, static corner-load force
Rear tire slip angle chart data
Slip angle (°)Normalized forceDisplayed force (N)
-30.0-0.982-4,423
-27.5-0.986-4,442
-25.0-0.990-4,461
-22.5-0.994-4,479
-20.0-0.997-4,494
-17.5-1.000-4,504
-15.0-1.000-4,505
-12.5-0.996-4,488
-10.0-0.984-4,436
-7.5-0.956-4,306
-5.0-0.881-3,968
-2.5-0.650-2,927
0.00.0000
2.50.6502,927
5.00.8813,968
7.50.9564,306
10.00.9844,436
12.50.9964,488
15.01.0004,505
17.51.0004,504
20.00.9974,494
22.50.9944,479
25.00.9904,461
27.50.9864,442
30.00.9824,423

Tire curve inputs: the slip-ratio view assumes zero slip angle; the slip-angle view assumes zero longitudinal slip. During combined braking or cornering, TORCS feeds sqrt(sx^2 + sin^2(angle)) into the same tire model.

Tire force assumption: static force applies TORCS' default load-sensitivity factors to the tire friction multiplier and average configured corner load for that axle. This illustrative view assumes level ground, equal left/right load, surface friction 1 and zero camber contribution; it excludes fuel, aerodynamic load, weight transfer, skill, wear, temperature and relaxation effects.

Engineering specifications

Dimensions

Length
4.500 m
Width
1.922 m
Height
1.100 m
Wheelbase
2.620 m
Front track
1.700 m
Rear track
1.600 m

Engine

Tickover
900 rpm
Limiter
8,200 rpm
Maximum authored RPM
10,000 rpm
Rotational inertia
0.200 kg·m2
Fuel consumption factor
1.110
Torque at limiter
418.0 N·m

Transmission and differentials

Layout
RWD
Shift time
0.150 s
Final drive
5.000
Driven wheel radius
0.328 m
Gear ratios
1: 2.660; 2: 1.600; 3: 1.150; 4: 0.900; 5: 0.790; 6: 0.710
Differentials
front: NONE (1.000); rear: LIMITED SLIP (5.000)

Aerodynamics

Drag coefficient
0.360
Frontal area
1.920 m2
CdA
0.691 m2
Front / rear lift coefficient
0.410 / 0.450
Front wing
0.150 m2 at 10.0°
Rear wing
0.250 m2 at 15.0°

Mass distribution and static corner loads

Configured mass
1,300.0 kg (incl. driver, excl. fuel)
CG height
0.290 m
Front / rear
52.0% / 48.0%
Front right / left
338.0 / 338.0 kg
Rear right / left
312.0 / 312.0 kg

Tires

Front size
255/40 R17
Front radius
0.318 m
Front tire friction multiplier
1.40
Front sliding / peak ratio
0.80
Front stiffness / Magic Formula
19.000; B 13.478, C 1.410, E 0.700
Rear size
330/30 R18
Rear radius
0.328 m
Rear tire friction multiplier
1.40
Rear sliding / peak ratio
0.80
Rear stiffness / Magic Formula
19.000; B 13.478, C 1.410, E 0.700

Controls

Steering lock
21.0°
Front brake fraction
60.0%
Maximum brake pressure
29,000 kPa

Suspension and ride frequency

Front right
285.5 lbf/in; 2.32 Hz
Front right bellcrank / wheel rate
1.200 / 411.1 lbf/in
Front left
285.5 lbf/in; 2.32 Hz
Front left bellcrank / wheel rate
1.200 / 411.1 lbf/in
Rear right
285.5 lbf/in; 2.42 Hz
Rear right bellcrank / wheel rate
1.200 / 411.1 lbf/in
Rear left
285.5 lbf/in; 2.42 Hz
Rear left bellcrank / wheel rate
1.200 / 411.1 lbf/in

Default setup sheet

Aerodynamics

Front Wing

SettingDefault
angle 10.0°

Rear Wing

SettingDefault
angle 15.0°

Controls

Steer

SettingDefault
steer lock 21.0°

Brake System

SettingDefault
front-rear brake repartition 0.600
max pressure 29,000 kPa

Wheels

Front Left Wheel

SettingDefault
ride height 100.0 mm
toe 0.00°
caster 3.5°
camber -4.00°

Front Right Wheel

SettingDefault
ride height 100.0 mm
toe 0.00°
caster 3.5°
camber -4.00°

Rear Left Wheel

SettingDefault
ride height 100.0 mm
toe -0.30°
camber -3.00°

Rear Right Wheel

SettingDefault
ride height 100.0 mm
toe 0.30°
camber -3.00°

Suspension

Front Left Suspension

SettingDefault
spring 286 lbf/in
packers 0.0 mm
slow bump 40.8 lbf/in/s
slow rebound 20.4 lbf/in/s
fast bump 5.1 lbf/in/s
fast rebound 11.2 lbf/in/s
fast bump threshold 15.0 cm/s
fast rebound threshold 15.0 cm/s

Front Right Suspension

SettingDefault
spring 286 lbf/in
packers 0.0 mm
slow bump 40.8 lbf/in/s
slow rebound 20.4 lbf/in/s
fast bump 5.1 lbf/in/s
fast rebound 11.2 lbf/in/s
fast bump threshold 15.0 cm/s
fast rebound threshold 15.0 cm/s

Rear Left Suspension

SettingDefault
spring 286 lbf/in
packers 0.0 mm
slow bump 16.3 lbf/in/s
slow rebound 35.7 lbf/in/s
fast bump 5.1 lbf/in/s
fast rebound 11.2 lbf/in/s
fast bump threshold 15.0 cm/s
fast rebound threshold 15.0 cm/s

Rear Right Suspension

SettingDefault
spring 286 lbf/in
packers 0.0 mm
slow bump 16.3 lbf/in/s
slow rebound 35.7 lbf/in/s
fast bump 5.1 lbf/in/s
fast rebound 11.2 lbf/in/s
fast bump threshold 15.0 cm/s
fast rebound threshold 15.0 cm/s

Third elements and anti-roll bars

Each axle spring and damper set configures a third suspension element shared by its left and right wheels.

Front Anti-Roll Bar

SettingDefault
spring 82 lbf/in

Rear Anti-Roll Bar

SettingDefault
spring 0 lbf/in

Differentials

Rear Differential

Type: Limited slip

SettingDefault
ratio 5.000
max slip bias 0.030
locking input torque 5,000 N·m
locking brake input torque 1,500 N·m

Gearbox

Forward gears

SettingDefault
Gear 1 ratio 2.660
Gear 2 ratio 1.600
Gear 3 ratio 1.150
Gear 4 ratio 0.900
Gear 5 ratio 0.790
Gear 6 ratio 0.710